Title
Mean soil <tex>$CO_{2}$</tex> efflux from a mixed forest : Temporal and spatial integration Mean soil <tex>$CO_{2}$</tex> efflux from a mixed forest : Temporal and spatial integration
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
bookPart
Publication
Subject
Economics
Chemistry
Biology
Source (journal)
Forest ecosystem modelling, upscaling and remote sensing
Source (book)
International Workshop on Forest Ecosystem Modelling, Upscaling and, Remote Sensing, SEP 21-25, 1998, ANTWERP, BELGIUM
Volume/pages
(1999) , p. 19-31
ISBN
90-5103-138-6
ISI
000088667300002
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
In situ soil CO2 efflux was measured with a corrected soda lime technique for almost two years in four different types of vegetation in a very heterogeneous mixed coniferous/deciduous forest in the Campine region of Belgium. These experimental data were used to develop an empirical model of soil CO2 efflux in relation to soil moisture and soil temperature. In all four vegetation types, the model fitted the data rather well (R-2: 0.84-0.94), and most of the variation was explained by soil temperature. Accumulated yearly totals (1997) ranged from 10.3 t ha(-1) under a coniferous canopy without understory to 28.2 t ha(-1) under a deciduous cover with an undergrowth of grasses. Mean soil CO2 efflux for the entire forest was scaled up from the weighted contribution of each vegetation type to the forested area, and was estimated to be 16.7 t ha(-1) y(-1) (or 4.6 carbon t ha(-1) y(-1)).
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